Cell Transport and Homeostasis Vocabulary

These flashcards cover essential vocabulary regarding cell transport and homeostasis, providing definitions and examples to help with understanding key concepts.

Active Transport

Movement of materials into or out of a cell using the cell’s energy (ATP).

Passive Transport

Movement of materials across the cell membrane without using energy.

Cell Membrane

A thin, flexible layer that surrounds a cell, controlling what enters and leaves.

Hypertonic Solution

A solution with more solute outside the cell than inside, causing water to move out and the cell to shrink.

Hypotonic Solution

A solution with less solute outside the cell than inside, causing water to move in and the cell to swell or burst.

Isotonic Solution

A solution with the same amount of solute inside and outside the cell, resulting in no change in cell size.

Solution

A mixture of two or more things where one dissolves in another.

Diffusion

The spreading out of particles from where there are a lot to where there are fewer.

Osmosis

A special kind of diffusion where water moves through a semi-permeable membrane.

Semi-permeable (Selectively Permeable)

A membrane that only lets certain things pass through.

Homeostasis

The ability of an organism or cell to keep things balanced inside, even when the outside changes.